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Finding the Fourth Proportional to 338,197.05, 466,487.39 and 217,491.05

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Solution

The fourth proportional to 338,197.05, 466,487.39 and 217,491.05 is: 299,993.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,197.05 : 466,487.39 = 217,491.05 : x
  2. Step 2: Convert to fraction form
    338,197.05/466,487.39 = 217,491.05/x
  3. Step 3: Cross multiply
    338,197.05x = 466,487.39 × 217,491.05
  4. Step 4: Simplify right side
    338,197.05x = 101,456,828,842.97
  5. Step 5: Solve for x
    x = 101,456,828,842.97/338,197.05
  6. Step 6: Final answer
    x = 299,993.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.